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Volume 69, Issue 7

Prospective multi-center evaluation on risk factors, clinical characteristics and outcomes due to carbapenem resistance in complex bacteraemia: experience from the Chinese Antimicrobial Resistance Surveillance of Nosocomial Infections (CARES) Network Free

Abstract

Increasing evidence demonstrates unfavourable outcomes in bloodstream infections (BSI) due to the carbapenem-resistant complex (CRAB).

To investigate the differences in risk factors, clinical characteristics and outcomes in patients with complex BSI stratified by carbapenem resistance, a prospective multi-center study was conducted.

Information was collected in a predefined form. A total of 317 cases was included for comparison between CRAB BSI vs. carbapenem-susceptible complex (CSAB) BSI. Among these cases, 229 cases were defined as CRAB BSI and 88 cases as CSAB BSI.

Univariable analysis showed that male gender, underlying neurologic disease, prior carbapenems exposure, intensive care unit (ICU) stay, presence of central venous catheter, endotracheal intubation, tracheotomy, Foley catheter, nasogastric intubation, lower respiratory tract infections and catheter-related infections were more prevalent in CRAB BSI. Only male gender, prior carbapenems exposure and presence of endotracheal intubation persisted as independent risk factors for acquiring CRAB BSI. Patients with CRAB BSI displayed unfavourable outcomes characterized by failure of pathogen clearance, continuous fever, disease aggravation and higher incidence of 30-day all-cause mortality. Multivariate analysis demonstrated carbapenem resistance as an independent risk factor for 30-day all-cause mortality.

Our findings reveal the epidemiological differences between CRAB BSI and CSAB BSI in a Chinese cohort. Our data suggest that carbapenem resistance has a significant impact on mortality for patients with complex BSI, further strengthening the importance of active prevention and control strategies for the spread of CRAB in Chinese hospitals.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): bloodstream infections , Carbapenem-resistant A. baumannii , clinical characteristics , outcomes and risk factors
Funding
This study was supported by the:
  • Pfizer
    • Principle Award Recipient: Hui Wang
© 2020 The Authors
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2020-06-25
2024-04-19
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Prospective multi-center evaluation on risk factors, clinical characteristics and outcomes due to carbapenem resistance in Acinetobacter baumannii complex bacteraemia: experience from the Chinese Antimicrobial Resistance Surveillance of Nosocomial Infections (CARES) Network
J. Med. Microbiol. 69, 949 (2020); https://doi.org/10.1099/jmm.0.001222
/content/journal/jmm/10.1099/jmm.0.001222
/content/journal/jmm/10.1099/jmm.0.001222
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